android 音乐播放器源码下载(仿QQ播放器)

package org.app.qqmusicplayer;import java.io.BufferedReader;import java.io.File;import java.io.FileDescriptor;import java.io.FileInputStream;import java.io.FileNotFoundException;import java.io.IOException;import java.io.InputStream;import java.io.InputStreamReader;import java.io.UnsupportedEncodingException;import java.util.Iterator;import java.util.TreeMap;import org.app.qqmusic.tool.LRCbean;import android.app.Activity;import android.content.BroadcastReceiver;import android.content.ContentResolver;import android.content.ContentUris;import android.content.Context;import android.content.Intent;import android.content.IntentFilter;import android.database.Cursor;import android.graphics.Bitmap;import android.graphics.BitmapFactory;import android.media.AudioManager;import android.net.Uri;import android.os.Bundle;import android.os.ParcelFileDescriptor;import android.provider.MediaStore;import android.view.KeyEvent;import android.view.View;import android.view.View.OnClickListener;import android.view.animation.Animation;import android.view.animation.AnimationUtils;import android.widget.ImageButton;import android.widget.ImageView;import android.widget.RelativeLayout;import android.widget.SeekBar;import android.widget.SeekBar.OnSeekBarChangeListener;import android.widget.SlidingDrawer;import android.widget.SlidingDrawer.OnDrawerCloseListener;import android.widget.SlidingDrawer.OnDrawerOpenListener;import android.widget.TextView;import android.widget.Toast;/** * 这里是播放界面模块。原先的播放等于没用服务而已，这次把后台狠狠强化下，不但能后台播放，而且采取随机播放的功能 * 这边对一些资源以及状态的操作保存在OnStart下进行。显示歌名歌手，调用loadclip 方法 歌词调用readlrc，路径根据手机SD卡不同而不同。所以运行之前修改下你真机实际路径 * 很明显，所有显示的有关的东西都是调用OnStart方法 */public class PlayMusicActivity extends Activity {private int[] _ids;// 临时音乐idprivate String[] _artists;// 艺术家private String[] _titles;// 标题private TextView musicnames;// 音乐名private TextView artisting;// 艺术家private ImageButton play_btn;// 播放按钮private ImageButton last_btn;// 上一首private ImageButton next_btn;// 下一首private TextView playtimes = null;// 已播放时间private TextView durationTime = null;// 歌曲时间private SeekBar seekbar;// 进度条private int position;// 定义一个位置，用于定位用户点击列表曲首private int currentPosition;// 当前播放位置private int duration;// 总时间private TextView lrcTextview;// 歌词 private ImageView album;// 专辑private SlidingDrawer slidingdrawer;private ImageButton LoopBtn = null;// 循环private ImageButton RandomBtm = null;// 随机private ImageView ly_handle;//手动private static final String MUSIC_CURRENT = "com.app.currentTime";// Action的状态private static final String MUSIC_DURATION = "com.app.duration";private static final String MUSIC_NEXT = "com.app.next";private static final String MUSIC_UPDATE = "com.app.update";private static final int PLAY = 1;// 定义播放状态private static final int PAUSE = 2;// 暂停状态private static final int STOP = 3;// 停止private static final int PROGRESS_CHANGE = 4;// 进度条改变private static final int STATE_PLAY = 1;// 播放状态设为1private static final int STATE_PAUSE = 2;// 播放状态设为2public static final int LOOP_NONE = 0;//不循环public static final int LOOP_ONE = 1;//单体循环public static final int LOOP_ALL = 2;//全部循环public static int loop_flag = LOOP_NONE;public static boolean random_flag = false;public static int[] randomIDs = null;public static int randomNum = 0;private int flag;// 标记private Cursor cursor;// 游标private TreeMap<Integer, LRCbean> lrc_map = new TreeMap<Integer, LRCbean>();// Treemap对象private AudioManager am;private int maxVolume;// 最大音量private int currentVolume;// 当前音量public Context context;//上下文 private RelativeLayout play_control;//控制台 private RelativeLayout play_seekbar;//进度条 float start; float end;@Overrideprotected void onCreate(Bundle savedInstanceState) {super.onCreate(savedInstanceState);setContentView(R.layout.play_music);Intent intent = this.getIntent();//接收来自列表的数据Bundle bundle = intent.getExtras();_ids = bundle.getIntArray("_ids");randomIDs = new int[_ids.length];position = bundle.getInt("position");_titles = bundle.getStringArray("_titles");_artists = bundle.getStringArray("_artists");// 以下是找各个控件ID。大家熟悉的，故不解释musicnames = (TextView) findViewById(R.id.play_music_name);artisting = (TextView) findViewById(R.id.playback_artist_name);play_btn = (ImageButton) findViewById(R.id.pausebtn);last_btn = (ImageButton) findViewById(R.id.prevbtn);next_btn = (ImageButton) findViewById(R.id.nextbtn);playtimes = (TextView) findViewById(R.id.playtime);durationTime = (TextView) findViewById(R.id.duration);seekbar = (SeekBar) findViewById(R.id.play_seekbar);lrcTextview = (TextView) findViewById(R.id.lrc);album = (ImageView) findViewById(R.id.playback_album_art);am = (AudioManager) getSystemService(Context.AUDIO_SERVICE);maxVolume = am.getStreamMaxVolume(AudioManager.STREAM_MUSIC);currentVolume = am.getStreamVolume(AudioManager.STREAM_MUSIC); context=this; slidingdrawer = (SlidingDrawer) findViewById(R.id.playback_drawer);ly_handle=(ImageView) findViewById(R.id.drawer_handle);play_control=(RelativeLayout) findViewById(R.id.bottom);play_seekbar=(RelativeLayout) findViewById(R.id.player_progress_bar);// 下面写几个按钮方法。首先找ID之后加监听后，在监听写方法ShowPlayBtn();ShowLastBtn();ShowNextBtn();ShowSeekBar();ShowLoop();ShowRandom();ShowSliderDrawers();}/** 显示随机*/ private void ShowRandom() {RandomBtm = (ImageButton) findViewById(R.id.playback_mode);RandomBtm.setOnClickListener(new View.OnClickListener() {@Overridepublic void onClick(View v) {if (random_flag == false) {for (int i = 0; i < _ids.length; i ) {randomIDs[i] = -1;}random_flag = true;RandomBtm.setBackgroundResource(R.drawable.random_select);Toast.makeText(PlayMusicActivity.this, "你选择的是随机播放", Toast.LENGTH_SHORT).show();} else {random_flag = false;RandomBtm.setBackgroundResource(R.drawable.random);}}});}/** 显示按顺序或者单曲重复播放*/private void ShowLoop() {LoopBtn = (ImageButton) findViewById(R.id.playback_mode);LoopBtn.setOnClickListener(new View.OnClickListener() {@Overridepublic void onClick(View v) {switch (loop_flag) {case LOOP_NONE:loop_flag = LOOP_ONE;LoopBtn.setBackgroundResource(R.drawable.loop_one);Toast.makeText(PlayMusicActivity.this, "你选择的是单曲重复", Toast.LENGTH_SHORT).show();break;case LOOP_ONE:loop_flag = LOOP_ALL;LoopBtn.setBackgroundResource(R.drawable.loop_all);Toast.makeText(PlayMusicActivity.this, "你选择的是全部循环", Toast.LENGTH_SHORT).show();break;case LOOP_ALL:loop_flag = LOOP_NONE;LoopBtn.setBackgroundResource(R.drawable.loop_none);Toast.makeText(PlayMusicActivity.this, "你选择的是单曲循环", Toast.LENGTH_SHORT).show();break;}}});}/** 播放按钮*/private void ShowPlayBtn() {play_btn.setOnClickListener(new OnClickListener() {@Overridepublic void onClick(View v) {switch (flag) {case STATE_PLAY:pause();break;case STATE_PAUSE:play();break;}}});}/** 显示进度条*/private void ShowSeekBar() {seekbar.setOnSeekBarChangeListener(new OnSeekBarChangeListener() {@Overridepublic void onStopTrackingTouch(SeekBar seekBar) {}@Overridepublic void onStartTrackingTouch(SeekBar seekBar) {}@Overridepublic void onProgressChanged(SeekBar seekBar, int progress,boolean fromUser) {if (fromUser) {seekbar_change(progress);}}});}/** 显示下一首*/public void ShowNextBtn() {next_btn.setOnClickListener(new OnClickListener() {@Overridepublic void onClick(View v) {nextOne();}});}/** 显示上一首*/public void ShowLastBtn() {last_btn.setOnClickListener(new OnClickListener() {@Overridepublic void onClick(View v) {lastOne();}});}/** 播放音乐*/public void play() {flag = PLAY;play_btn.setImageResource(R.drawable.pause_button);Intent intent = new Intent();intent.setAction("com.app.media.MUSIC_SERVICE");intent.putExtra("op", PLAY);// 向服务传递数据startService(intent);}/** 暂停播放音乐*/public void pause() {flag = PAUSE;play_btn.setImageResource(R.drawable.play_button);Intent intent = new Intent();intent.setAction("com.app.media.MUSIC_SERVICE");intent.putExtra("op", PAUSE);startService(intent);}/*** 进度条改变*/private void seekbar_change(int progress) {Intent intent = new Intent();intent.setAction("com.app.media.MUSIC_SERVICE");intent.putExtra("op", PROGRESS_CHANGE);intent.putExtra("progress", progress);startService(intent);}/** 下一首*/public void nextOne() {if (_ids.length == 1 || loop_flag == LOOP_ONE) {position = position;Intent intent = new Intent();intent.setAction("com.app.media.MUSIC_SERVICE");intent.putExtra("length", 1);startService(intent);play();return;}if (random_flag == true) {if (randomNum < _ids.length - 1) {randomIDs[randomNum] = position;position = findRandomSound(_ids.length);randomNum ;} else {randomNum = 0;for (int i = 0; i < _ids.length; i ) {randomIDs[i] = -1;}randomIDs[randomNum] = position;position = findRandomSound(_ids.length);randomNum ;}} else {if (position == _ids.length - 1) {position = 0;} else if (position < _ids.length - 1) {position ;}}stop();setup();play();}/** * 上一首 */public void lastOne() {if (_ids.length == 1 || loop_flag == LOOP_ONE) {position = position;Intent intent = new Intent();intent.setAction("com.app.media.MUSIC_SERVICE");intent.putExtra("length", 1);startService(intent);play();return;}if (random_flag == true) {if (randomNum < _ids.length - 1) {randomIDs[randomNum] = position;position = findRandomSound(_ids.length);randomNum ;} else {randomNum = 0;for (int i = 0; i < _ids.length; i ) {randomIDs[i] = -1;}randomIDs[randomNum] = position;position = findRandomSound(_ids.length);randomNum ;}} else {if (position == 0) {position = _ids.length - 1;} else if (position > 0) {position--;}}stop();setup();play();} /**找到随机位置**/public static int findRandomSound(int end) {int ret = -1;ret = (int) (Math.random() * end);while (havePlayed(ret, end)) {ret = (int) (Math.random() * end);}return ret;} /**是否在播放**/public static boolean havePlayed(int position, int num) {boolean ret = false;for (int i = 0; i < num; i ) {if (position == randomIDs[i]) {ret = true;break;}}return ret;}/** * 停止播放音乐 */private void stop() {Intent isplay = new Intent("notifi.update");sendBroadcast(isplay);// 发起后台支持unregisterReceiver(musicReceiver);Intent intent = new Intent();intent.setAction("com.app.media.MUSIC_SERVICE");intent.putExtra("op", STOP);startService(intent);}@Overrideprotected void onStart() {super.onStart();setup();play();}/** * 当界面不可见时候，反注册的广播 */@Overrideprotected void onStop() {super.onStop();unregisterReceiver(musicReceiver);}/** * 按下返回键事件 */@Overridepublic boolean onKeyDown(int keyCode, KeyEvent event) {if (keyCode == KeyEvent.KEYCODE_BACK) {Intent intent = new Intent(PlayMusicActivity.this,TabHostMainActivity.class);startActivity(intent);finish();}return true;}/** * 初始化 */private void setup() {loadclip();init();ReadSDLrc();}/** * 读歌词方法 */private void ReadSDLrc() {/**我们现在的歌词就是要String数组的第4个参数-显示文件名字**/cursor = getContentResolver().query(MediaStore.Audio.Media.EXTERNAL_CONTENT_URI,new String[] { MediaStore.Audio.Media.TITLE,MediaStore.Audio.Media.DURATION,MediaStore.Audio.Media.ARTIST,MediaStore.Audio.Media.ALBUM,MediaStore.Audio.Media.DISPLAY_NAME,MediaStore.Audio.Media.ALBUM_ID }, "_id=?",new String[] { _ids[position] "" }, null);cursor.moveToFirst();// 将游标移至第一位Bitmap bm = getArtwork(this, _ids[position], cursor.getInt(5), true);/**切换播放时候专辑图片出现透明效果**/Animation albumanim=AnimationUtils.loadAnimation(context, R.anim.album_replace);/**开始播放动画效果**/album.startAnimation(albumanim);album.setImageBitmap(bm);/**游标定位到DISPLAY_NAME**/String name = cursor.getString(4);/**sd卡的音乐名字截取字符窜并找到它的位置,这步重要，没有写一直表示歌词文件无法显示,顺便说声不同手机型号SD卡有不同的路径。**/read("/sdcard/music/" name.substring(0, name.indexOf(".")) ".lrc");/** 在调试时我先把音乐名字写死，运行时候在控制台打印出音乐名字，那么由此判断歌名没问题.只是没有获取位置**/System.out.println(cursor.getString(4));}/** * 读取歌词的方法，采用IO方法一行一行的显示 */private void read(String path) {lrc_map.clear();TreeMap<Integer, LRCbean> lrc_read = new TreeMap<Integer, LRCbean>();String data = "";BufferedReader br = null;File file = new File(path);System.out.println(path);/**如果没有歌词，则用没有歌词显示**/if (!file.exists()) {Animation lrcanim=AnimationUtils.loadAnimation(context, R.anim.album_replace);lrcTextview.setText(R.string.lrc_messenge);lrcTextview.startAnimation(lrcanim);return;}FileInputStream stream = null;try {stream = new FileInputStream(file);br = new BufferedReader(new InputStreamReader(stream, "UTF-8"));} catch (FileNotFoundException e) {e.printStackTrace();} catch (UnsupportedEncodingException e) {e.printStackTrace();}try {while ((data = br.readLine()) != null) {if (data.length() > 6) {if (data.charAt(3) == ':' && data.charAt(6) == '.') {// 从歌词正文开始data = data.replace("[", "");data = data.replace("]", "@");data = data.replace(".", ":");String lrc[] = data.split("@");String lrcContent = null;if (lrc.length == 2) {lrcContent = lrc[lrc.length - 1];// 歌词} else {lrcContent = "";}for (int i = 0; i < lrc.length - 1; i ) {String lrcTime[] = lrc[0].split(":");int m = Integer.parseInt(lrcTime[0]);// 分int s = Integer.parseInt(lrcTime[1]);// 秒int ms = Integer.parseInt(lrcTime[2]);// 毫秒int begintime = (m * 60 s) * 1000 ms;// 转换成毫秒LRCbean lrcbean = new LRCbean();lrcbean.setBeginTime(begintime);// 设置歌词开始时间lrcbean.setLrcBody(lrcContent);// 设置歌词的主体lrc_read.put(begintime, lrcbean);}}}}stream.close();} catch (IOException e) {e.printStackTrace();}// 计算每句歌词需要的时间lrc_map.clear();data = "";Iterator<Integer> iterator = lrc_read.keySet().iterator();LRCbean oldval = null;int i = 0;while (iterator.hasNext()) {Object ob = iterator.next();LRCbean val = lrc_read.get(ob);if (oldval == null) {oldval = val;} else {LRCbean item1 = new LRCbean();item1 = oldval;item1.setLineTime(val.getBeginTime() - oldval.getBeginTime());lrc_map.put(new Integer(i), item1);i ;oldval = val;}}}/** * 初始化服务 */private void init() {IntentFilter filter = new IntentFilter();filter.addAction(MUSIC_CURRENT);filter.addAction(MUSIC_DURATION);filter.addAction(MUSIC_NEXT);filter.addAction(MUSIC_UPDATE);filter.addAction("notifi.update");registerReceiver(musicReceiver, filter);}/** * 获取歌名，歌手的字符串 */private void loadclip() {seekbar.setProgress(0);/**设置歌曲名**/if (_titles[position].length() > 15)musicnames.setText(_titles[position].substring(0, 12) "...");// 设置歌曲名elsemusicnames.setText(_titles[position]);/**设置艺术家名**/ if (_artists[position].equals("<unknown>"))artisting.setText("未知艺术家");elseartisting.setText(_artists[position]);Intent intent = new Intent();intent.putExtra("_ids", _ids);intent.putExtra("_titles", _titles);intent.putExtra("_artists", _artists);intent.putExtra("position", position); intent.setAction("com.app.media.MUSIC_SERVICE");// 给将这个action发送服务startService(intent);}/**在后台MusicService里使用handler消息机制，不停的向前台发送广播，广播里面的数据是当前mp播放的时间点， * 前台接收到广播后获得播放时间点来更新进度条,暂且先这样。但是一些人说虽然这样能实现。但是还是觉得开个子线程不错**/protected BroadcastReceiver musicReceiver = new BroadcastReceiver() {public void onReceive(Context context, Intent intent) {String action = intent.getAction();if (action.equals(MUSIC_CURRENT)) {currentPosition = intent.getExtras().getInt("currentTime");// 获得当前播放位置playtimes.setText(toTime(currentPosition));seekbar.setProgress(currentPosition);// 设置进度条Iterator<Integer> iterator = lrc_map.keySet().iterator();while (iterator.hasNext()) {Object o = iterator.next();LRCbean val = lrc_map.get(o);if (val != null) {if (currentPosition > val.getBeginTime()&& currentPosition < val.getBeginTime() val.getLineTime()) {lrcTextview.setText(val.getLrcBody());break;}}}} else if (action.equals(MUSIC_DURATION)) {duration = intent.getExtras().getInt("duration");seekbar.setMax(duration);durationTime.setText(toTime(duration));} else if (action.equals(MUSIC_NEXT)) {nextOne();} else if (action.equals(MUSIC_UPDATE)) {position = intent.getExtras().getInt("position");setup();}}};/** * 播放时间转换 */public String toTime(int time) {time /= 1000;int minute = time / 60;int second = time % 60;minute %= 60;return String.format("%02d:%02d", minute, second);}/** * 回调音量大小函数 */@Overridepublic boolean dispatchKeyEvent(KeyEvent event) {int action = event.getAction();int keyCode = event.getKeyCode();switch (keyCode) {case KeyEvent.KEYCODE_VOLUME_UP:if (action == KeyEvent.ACTION_UP) {if (currentVolume < maxVolume) {currentVolume = currentVolume 1;am.setStreamVolume(AudioManager.STREAM_MUSIC,currentVolume, 0);} else {am.setStreamVolume(AudioManager.STREAM_MUSIC,currentVolume, 0);}}return false;case KeyEvent.KEYCODE_VOLUME_DOWN:if (action == KeyEvent.ACTION_UP) {if (currentVolume > 0) {currentVolume = currentVolume - 1;am.setStreamVolume(AudioManager.STREAM_MUSIC,currentVolume, 0);} else {am.setStreamVolume(AudioManager.STREAM_MUSIC,currentVolume, 0);}}return false;default:return super.dispatchKeyEvent(event);}}/** * 以下是歌曲放的时候显示专辑图片。和列表不同,播放时图片要大。所以cam那个方法写合适的图片吧 */public static Bitmap getArtwork(Context context, long song_id,long album_id, boolean allowdefault) {if (album_id < 0) {if (song_id >= 0) {Bitmap bm = getArtworkFromFile(context, song_id, -1);if (bm != null) {return bm;}}if (allowdefault) {return getDefaultArtwork(context);}return null;}ContentResolver res = context.getContentResolver();Uri uri = ContentUris.withAppendedId(sArtworkUri, album_id);if (uri != null) {InputStream in = null;try {in = res.openInputStream(uri);BitmapFactory.Options options = new BitmapFactory.Options();/**先指定原始大小**/options.inSampleSize = 1;/** 只进行大小判断**/options.inJustDecodeBounds = true;/**调用此方法得到options得到图片的大小**/BitmapFactory.decodeStream(in, null, options);/**我们的目标是在你N pixel的画面上显示。 所以需要调用computeSampleSize得到图片缩放的比例**/options.inSampleSize = computeSampleSize(options, 100);/**我们得到了缩放的比例，现在开始正式读入BitMap数据**/options.inJustDecodeBounds = false;options.inDither = false;options.inPreferredConfig = Bitmap.Config.ARGB_8888;in = res.openInputStream(uri);return BitmapFactory.decodeStream(in, null, options);} catch (FileNotFoundException ex) {Bitmap bm = getArtworkFromFile(context, song_id, album_id);if (bm != null) {if (bm.getConfig() == null) {bm = bm.copy(Bitmap.Config.RGB_565, false);if (bm == null && allowdefault) {return getDefaultArtwork(context);}}} else if (allowdefault) {bm = getDefaultArtwork(context);}return bm;} finally {try {if (in != null) {in.close();}} catch (IOException ex) {}}}return null;}private static Bitmap getArtworkFromFile(Context context, long songid,long albumid) {Bitmap bm = null;if (albumid < 0 && songid < 0) {throw new IllegalArgumentException("Must specify an album or a song id");}try {BitmapFactory.Options options = new BitmapFactory.Options();FileDescriptor fd = null;if (albumid < 0) {Uri uri = Uri.parse("content://media/external/audio/media/" songid "/albumart");ParcelFileDescriptor pfd = context.getContentResolver().openFileDescriptor(uri, "r");if (pfd != null) {fd = pfd.getFileDescriptor();}} else {Uri uri = ContentUris.withAppendedId(sArtworkUri, albumid);ParcelFileDescriptor pfd = context.getContentResolver().openFileDescriptor(uri, "r");if (pfd != null) {fd = pfd.getFileDescriptor();}}options.inSampleSize = 1;// 只进行大小判断options.inJustDecodeBounds = true;// 调用此方法得到options得到图片的大小BitmapFactory.decodeFileDescriptor(fd, null, options);// 我们的目标是在800pixel的画面上显示。// 所以需要调用computeSampleSize得到图片缩放的比例options.inSampleSize = 100;// OK,我们得到了缩放的比例，现在开始正式读入BitMap数据options.inJustDecodeBounds = false;options.inDither = false;options.inPreferredConfig = Bitmap.Config.ARGB_8888;// 根据options参数，减少所需要的内存bm = BitmapFactory.decodeFileDescriptor(fd, null, options);} catch (FileNotFoundException ex) {}return bm;}/**这个函数会对图片的大小进行判断，并得到合适的缩放比例，比如2即1/2,3即1/3**/static int computeSampleSize(BitmapFactory.Options options, int target) {int w = options.outWidth;int h = options.outHeight;int candidateW = w / target;int candidateH = h / target;int candidate = Math.max(candidateW, candidateH);if (candidate == 0)return 1;if (candidate > 1) {if ((w > target) && (w / candidate) < target)candidate -= 1;}if (candidate > 1) {if ((h > target) && (h / candidate) < target)candidate -= 1;}return candidate;}private static Bitmap getDefaultArtwork(Context context) {BitmapFactory.Options opts = new BitmapFactory.Options();opts.inPreferredConfig = Bitmap.Config.RGB_565;return BitmapFactory.decodeStream(context.getResources().openRawResource(R.drawable.default_album), null, opts);}private static final Uri sArtworkUri = Uri.parse("content://media/external/audio/albumart");/**简单的抽屉效果**/private void ShowSliderDrawers() { slidingdrawer.setOnDrawerOpenListener(new OnDrawerOpenListener() {@Overridepublic void onDrawerOpened() {/**当抽屉打开时候显示y轴动画同时把控制播放隐藏起来。其目的是更好的看到歌词吧*/play_control.setVisibility(View.GONE);/**隐藏进度条**/play_seekbar.setVisibility(View.GONE);/**下展开**/ly_handle.setImageResource(R.drawable.lyr_handle_expand_default);/**隐藏专辑图片**/album.setVisibility(View.GONE);}}); slidingdrawer.setOnDrawerCloseListener(new OnDrawerCloseListener() { @Overridepublic void onDrawerClosed() { /**关闭抽屉时候把播放控制按钮还原**/play_control.setVisibility(View.VISIBLE);/**还原进度条**/play_seekbar.setVisibility(View.VISIBLE);/**还原默认的**/ly_handle.setImageResource(R.drawable.lyr_handle_collapse_default);/**关闭抽屉效果专辑图片显示**/album.setVisibility(View.VISIBLE);}}); }}